The 1929 portrait, called "Nina con collar" or "Girl with necklace," has pre-sale estimate between $1.5 million to $2 million.

Receive the latest entertainment-news updates in your inbox

This undated image provided by Sotheby's shows a rediscovered painting by Frida Kahlo that is going to auction on Nov. 22, 2016, in New York. The 1929 portrait, "Nina con collar" or "Girl with necklace," will be part of Sotheby's Latin American art sale. (Sotheby's via AP)

A rediscovered painting by Frida Kahlo is going to auction this month in New York.

The 1929 portrait, called "Nina con collar" or "Girl with necklace," will be part of Sotheby's Latin America: Modern Art sale on Nov. 22. Its pre-sale estimate is $1.5 million to $2 million.

The work was painted before Kahlo and Rivera were married; they had no children, according to Axel Stein, Sotheby's head of Latin American Art.

The unknown, unsmiling, wide-eyed model, perhaps 14 or 15 years old, appears to represent a young Kahlo. She is wearing the artist's jade necklace and possibly her earrings, said Stein. The subject also is depicted with dark, distinctive eyebrows resembling Kahlo's.